Switchable multi-power-level short slot waveguide hybrid coupler
US4818964A · kind A · utility
9Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1986 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Apr 28, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A short slot waveguide hybrid coupler is disclosed wherein the coupling factor is switchable over a predetermined range of discrete coupling factors. A coupling slot formed in the common dividing wall between the contiguous first and second waveguides of the coupler allows coupling of electromagnetic energy between the two waveguides in accordance with a first coupling factor. A plurality of conductive pins are arranged for selective insertion into the coupling slot to effectively shorten the slot and thereby progressively reduce the coupling factor as more pins are inserted into the coupling slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.